Etymology of the English word epigeal
the English word epigeal
derived from the English word epigeous
derived from the Greek word epigeios, ἐπίγειος (worldly (physically or morally))
using the Greek prefix epi-, ἐπι-
derived from the Byzantine Greek word epi, ἐπί (upon; properly, meaning superimposition (of time, place, order, etc.), as a relation of distribution (with the genitive case); over, upon, etc.; of rest (with the dative case) at, on, etc.; of direction (with the accusative case) towards, upon, etc.)
derived from the Greek word ge, γῆ (earth, land, soil; world)